ISWCTYPE(3) | Library Functions Manual | ISWCTYPE(3)

# NAME

iswctype — test a character for character class identifier

# LIBRARY

Standard C Library (libc, -lc)

# SYNOPSIS

#include <wctype.h>

int
iswctype(wint_t wc, wctype_t charclass);

# DESCRIPTION

The iswctype() function returns a boolean value that indicates whether a wide character wc is in charclass.

The behaviour of iswctype() is undefined if the iswctype() function is called with an invalid charclass (changes of LC_CTYPE category invalidate charclass) or invalid wide character wc.

The behaviour of iswctype() is affected by the LC_CTYPE category of the current locale.

# RETURN VALUES

The iswctype() returns:

0
  wc is not in charclass.
non-zero
  wc is in charclass.

# ERRORS

No errors are defined.

# SEE ALSO

setlocale(3), towctrans(3), wctrans(3), wctype(3)

# STANDARDS

The iswctype() function conforms to ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment 1”).

March 4, 2003 | NetBSD 7.2